Package org.apache.calcite.sql

Class SqlSampleSpec.SqlTableSampleSpec

java.lang.Object

org.apache.calcite.sql.SqlSampleSpec

org.apache.calcite.sql.SqlSampleSpec.SqlTableSampleSpec

Enclosing class:

SqlSampleSpec

public static class SqlSampleSpec.SqlTableSampleSpec
extends SqlSampleSpec

Sample specification.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlSampleSpec

SqlSampleSpec.SqlSubstitutionSampleSpec, SqlSampleSpec.SqlTableSampleSpec

Field Summary

Fields

Modifier and Type	Field	Description
final BigDecimal	sampleRate

Method Summary

Modifier and Type	Method	Description
int	getRepeatableSeed()	Seed to produce repeatable samples.
float	getSamplePercentage()	Deprecated.
boolean	isBernoulli()	Indicates Bernoulli vs.
boolean	isRepeatable()	Indicates whether repeatable seed should be used.
String	toString()

Methods inherited from class org.apache.calcite.sql.SqlSampleSpec

createNamed, createTableSample, createTableSample, createTableSample, createTableSample

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

sampleRate

public final BigDecimal sampleRate

Method Details

isBernoulli

public boolean isBernoulli()

Indicates Bernoulli vs. System sampling.

getSamplePercentage

@Deprecated
public float getSamplePercentage()

Deprecated.

Returns the sampling rate. The range is 0.0 to 1.0. 0.0 returns no rows, and 1.0 returns all rows.

isRepeatable

public boolean isRepeatable()

Indicates whether repeatable seed should be used.

getRepeatableSeed

public int getRepeatableSeed()

Seed to produce repeatable samples.

toString

public String toString()

Overrides:

toString in class Object